Arize AX
6.8#7 in machine learning model monitoring softwareFrom $50 a monthFree planWebAPISelf-hosted
VisitArize AX vs Opik
What both publish
| Fact | Arize AX | Opik |
|---|---|---|
| Evaluation | Agent-as-a-Judge learns from agent telemetry and creates scalable evaluations that surface unknown failures. | Opik supports datasets, experiments, assertions and LLM-as-a-judge metrics for issues such as hallucination, relevance and moderation. |
| Purpose | Arize AX is a platform for continuous improvement of AI agents that turns production behavior into better agents. | Opik logs agent actions and provides automated evaluation workflows to find and fix errors across development, testing, and production. |
| Self-hosting | Self-hosted Arize AX keeps observability data, authentication, APIs and UI inside the customer’s infrastructure, with air-gapped deployment available. | Self-hosting exposes the full feature set but omits user-management features; local Docker installation is for getting started, while Kubernetes is the production deployment option. |
| Support | AX Free includes community troubleshooting support, AX Pro includes email support and AX Enterprise includes dedicated support. | The pricing page lists community and self-service support across plans, email support for Pro and Enterprise, and dedicated support and SLAs for Enterprise. |
Arize AX plans
- AX FreeFree
- AX Pro$50 a month
- AX EnterprisePriced on request
Opik plans
- Free CloudFree
- Open SourceFree
- Pro Cloud$19 a month
- EnterprisePriced on request
Pick Arize AX if…
It suits teams building and operating AI agents that need tracing, evaluations, and experiments. Self-hosted deployment is an option for teams that want observability systems inside their own infrastructure.
Pick Opik if…
Opik is for teams building LLM applications or agents that need tracing, evaluation, and production monitoring. Its free plans are described as suitable for development and testing.